Analysis
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max time kernel
91s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
05-12-2022 13:07
Static task
static1
Behavioral task
behavioral1
Sample
55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe
Resource
win7-20220901-en
windows7-x64
2 signatures
150 seconds
General
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Target
55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe
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Size
414KB
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MD5
595d42642142a10565fa36197b415ee6
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SHA1
6bc784974e32c23d5b6a92f7e2585ca967175ecc
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SHA256
55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b
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SHA512
f7c55a45802a55647bf97ede873866fca12ed8aa302a34ae07aa64d1589795fc1c2219fa7285799028c1f3ea5baa27d84119f6faf3f7d61ea5d12c50416c7ca8
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SSDEEP
3072:lmBfrS7baAhki96wTMEzJjHCXz33333333N33333333OqGMwqn5dFNijROw66ZwF:lmBK7ABUHCXIe/FgOwpwqqi+ZP2JEj
Malware Config
Signatures
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe -
resource yara_rule behavioral2/memory/4752-132-0x0000000002200000-0x000000000322A000-memory.dmp upx behavioral2/memory/4752-134-0x0000000002200000-0x000000000322A000-memory.dmp upx -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SYSTEM.INI 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe Token: SeDebugPrivilege 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 4752 wrote to memory of 760 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe 12 PID 4752 wrote to memory of 768 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe 11 PID 4752 wrote to memory of 312 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe 3 PID 4752 wrote to memory of 2256 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe 55 PID 4752 wrote to memory of 2268 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe 54 PID 4752 wrote to memory of 2376 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe 53 PID 4752 wrote to memory of 3004 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe 43 PID 4752 wrote to memory of 684 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe 42 PID 4752 wrote to memory of 3208 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe 41 PID 4752 wrote to memory of 3300 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe 40 PID 4752 wrote to memory of 3360 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe 39 PID 4752 wrote to memory of 3456 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe 38 PID 4752 wrote to memory of 3692 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe 37 PID 4752 wrote to memory of 4960 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe 34 PID 4752 wrote to memory of 2316 4752 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe 22 -
System policy modification 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe
Processes
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C:\Windows\system32\dwm.exe"dwm.exe"1⤵PID:312
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C:\Windows\system32\fontdrvhost.exe"fontdrvhost.exe"1⤵PID:768
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C:\Windows\system32\fontdrvhost.exe"fontdrvhost.exe"1⤵PID:760
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C:\Windows\system32\backgroundTaskHost.exe"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca1⤵PID:2316
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C:\Users\Admin\AppData\Local\Temp\55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe"C:\Users\Admin\AppData\Local\Temp\55bf2bde437f914c826ccdba3137233d28f135b18f7b8fad855bfb5095fa630b.exe"1⤵
- UAC bypass
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4752
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵PID:4960
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵PID:3692
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C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca1⤵PID:3456
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵PID:3360
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵PID:3300
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵PID:3208
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc1⤵PID:684
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3004
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C:\Windows\system32\taskhostw.exetaskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}1⤵PID:2376
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc1⤵PID:2268
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C:\Windows\system32\sihost.exesihost.exe1⤵PID:2256